168 



REVIEW OF AMERICAN BIRDS. 



[part I. 



I have nothing especial to add to the account of this species con- 

 tained in the " Birds of North America," except to say that the 

 differences there referred to in the length of the bill are seen in the 

 more recent specimens, and belong more particularly to southern 

 skins. Dr. Brewer considers the eggs of the southern bird so differ- 

 ent as to warrant their specific separation. I find it, however, very 

 difficult to express the differences other than as consisting in longer 

 bill and less degree of black beneath. 



This species is remarkable as occurring at Mazatlan and Colima, 

 and not in California or the Rockj^ Mountains. 



PARULA, Bon. 



Chloris, BoiE, Isis, 1826, 972 (not of Mcehking, 1752). (Type Parus 



americanus, L.) 

 Sylvicola, Swainson, Zool. Jour. Ill, July, 1827, 160 (not of Humphrey, 



Mus. Calonnianum, 1797, 60). (Same type.) 

 Panda, Bon., Geog. Comp. Cat. 1838. (Same type.) 

 Compsothlypis, Cab. Mus. Hein. 1850-51, 20. (Same type.) {Parula 



rejected as contrary to the Linnaean canons of nomenclature.) 



If Moehring's genera are rejected as made prior to the establish- 

 ment of the Linn^an binomial nomenclature, and by a non-binomial 

 author, there is, perhaps, no reason why Bole's name Chloris should 

 not be adopted for this group. I, however, leave the matter in 

 abeyance for the present. 



